package design.patterns.builder;

/**
 * @author daxue0929
 * @date 2023/4/17
 */

public abstract class Builder {

    //声明Bike类型的变量，并进行赋值
    protected Bike bike = new Bike();

    public abstract void buildFrame();

    public abstract void buildSeat();

    public abstract Bike createBike();

}
